In proguard, how to preserve a set of classes' method names?

Question

I am using proguard to obfuscate my android application. The android application contains some native code, which makes callbacks to fully qualified java methods. I need to not obfuscate these classes and the names of their methods. The below properly keeps the class names, but not the method names.

-keep public class com.me.dontobf.* -keepnames public class com.me.dontobf.* 

Answer 1

For native methods: ProGuard manual > Examples > Processing native methods

# note that <methods> means any method -keepclasseswithmembernames,includedescriptorclasses class * {     native <methods>; } 

In this case, for callback methods: ProGuard manual > Examples > Processing callback methods

-keep class mypackage.MyCallbackClass {     void myCallbackMethod(java.lang.String); } 

Or e.g., if all public methods may be callback methods:

-keep class mypackage.MyCallbackClass {     public <methods>; } 

You probably also need to keep any program classes that occur in the method descriptors.